//-----------------------------------------------------------------------------
// Open our private block
//-----------------------------------------------------------------------------
HRESULT IPCReaderInterface::OpenPrivateBlockOnPid(DWORD pid, DWORD dwDesiredAccess)
{
HRESULT hr = NO_ERROR;
DWORD dwErr = 0;
WCHAR szMemFileName[100];
IPCShared::GenerateName(pid, szMemFileName, 100);
// Note: if our private block is open, we shouldn't be attaching to a new one.
_ASSERTE(!IsPrivateBlockOpen());
if (IsPrivateBlockOpen())
{
return ERROR_ALREADY_EXISTS;
}
m_handlePrivateBlock = WszOpenFileMapping(dwDesiredAccess,
FALSE,
szMemFileName);
dwErr = GetLastError();
if (m_handlePrivateBlock == NULL)
{
hr = HRESULT_FROM_WIN32(dwErr);
goto errExit;
}
m_ptrPrivateBlock = (PrivateIPCControlBlock*) MapViewOfFile(
m_handlePrivateBlock,
dwDesiredAccess,
0, 0, 0);
dwErr = GetLastError();
if (m_ptrPrivateBlock== NULL)
{
hr = HRESULT_FROM_WIN32(dwErr);
goto errExit;
}
// Client must connect their pointers by calling GetXXXBlock() functions
errExit:
if (!SUCCEEDED(hr))
{
ClosePrivateBlock();
}
return hr;
}
//-----------------------------------------------------------------------------
// dtor
//-----------------------------------------------------------------------------
IPCReaderInterface::~IPCReaderInterface()
{
LEAF_CONTRACT;
LOG((LF_CORDB, LL_INFO10, "IPCRI::IPCReaderInterface::~IPCReaderInterface 0x%08x\n", m_handlePrivateBlock));
LOG((LF_CORDB, LL_INFO10, "IPCRI::IPCReaderInterface::~IPCReaderInterface 0x%08x (Public)\n", m_handlePublicBlock));
if (m_handlePrivateBlock)
{
ClosePrivateBlock();
}
_ASSERTE(m_handlePrivateBlock == NULL);
_ASSERTE(m_ptrPrivateBlock == NULL);
if (m_handlePublicBlock)
{
ClosePublicBlock();
}
_ASSERTE(m_handlePublicBlock == NULL);
_ASSERTE(m_ptrPublicBlock == NULL);
}